HUMAN NUTRITION

NUTRITION

LIPIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What happens when enzymes are heated to a high temperature?
A
The enzymes die.
B
The shapes of the enzyme are altered or denatured
C
The enzymes’ amino acid sequence changes.
D
The enzymes remain the same
Explanation: 

Detailed explanation-1: -Temperature: Raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. However, extreme high temperatures can cause an enzyme to lose its shape (denature) and stop working. pH: Each enzyme has an optimum pH range.

Detailed explanation-2: -A denatured enzyme refers to an enzyme that has lost its normal three-dimensional, or tertiary, structure. Once an enzyme loses this structure and is denatured, it is no longer able to function. Therefore, any catalytic advantage is lost, and the biological reaction no longer proceeds at an increased rate.

Detailed explanation-3: -Enzyme structures unfold (denature) when heated or exposed to chemical denaturants and this disruption to the structure typically causes a loss of activity. Protein folding is key to whether a globular protein or a membrane protein can do its job correctly.

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